HVAC duct fabrication machine Ⅲ features in high auomation,high efficiency and saving materials,which is very suitable for mass production of square ducts. Autoline - III consists of a metal feeding frame, leveling and grooving equipment, hydraulic punching square notch equipment, hydraulic cutter and folder. The electrical control system uses a computer with a closed-loop and servo-system to increase the precision and reliability of the manufacture line. The maximum working speed is 16m/min.The length tolerance is±0.3mm. The diagonal line tolerance is ±0.5mm.   One team will produce 1000㎡of square duct by using this system.

HVAC duct line  Ⅶ ,with U-shaped structure not only saves the production site, but also reduces the delivery time of raw materials. The production efficiency is high (about 20-23 seconds per piece). The department fully automatically realizes the fixed size cutting, beading, automatic cutting ,the notching, single hem folding, pittsburgh forming, TDF flange and the angle iron flange ,automatically forming and bent into ”L“, ”U“, ”口“ shaped duct. Equipped with punching support air, TDF flange hole is optional. Pittsburgh is formed before bending the short side of the large size duct.C+S flange is optional.It has the advantages of high automation, high efficiency, labor saving and material saving.